package map;

import java.util.*;
import java.util.function.BiConsumer;
import java.util.function.Consumer;

public class MapDemo2 {
    public static void main(String[] args) {
        Map<String,Integer> map=new HashMap<>();
        map.put("语文",99);
        map.put("数学",97);
        map.put("英语",98);
        map.put("物理",95);
        map.put("化学",96);
        map.put("生物",98);
        System.out.println(map);

        Set<String> keySet= map.keySet();
        for (String key:keySet){
            System.out.println("key:"+key);
        }
        Set<Map.Entry<String,Integer>> entrySet=map.entrySet();
        for (Map.Entry<String,Integer> e:entrySet){
            String key=e.getKey();
            Integer value=e.getValue();
            System.out.println(key+":"+value);

        }
        Collection<Integer> values=map.values();
        for (Integer value:values){
            System.out.println("value:"+value);
        }


        keySet.forEach(s->System.out.println(s));
        keySet.forEach(System.out::println);

        /*
        map.forEach(new BiConsumer<String, Integer>() {
            @Override
            public void accept(String k, Integer v) {
                System.out.println(k+":"+v);
            }
        });

         */

        map.forEach((k,v)->System.out.println(k+":"+v));
    }
}
